Power-transmitting mechanism for calculating-machines.



G. N. MOFARLAND- POWER TRANSMITTING MECHANISM FOR GALOULATiNG MACHINES.APPLIUATION FILED SEPT. 21, 1906.

902, 103 Patented Oct. 27, 1908.

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Attest: I

0. N. MQPARILAND.

POWER TRANSMITTING MECHANISM FOR CALCULATING MACHINES. APPLICATION FILEDSEPT.21,190E.

902,103. Patented 0015.27, 1908.

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In vntor Attest:

O. N. MOPARLAND.

POWER TRANSMITTING MECHANISM FOR CALCULATING MACHINES.

APPLIOATION FILED SEPT. 21 1906.

Patented Oct. 27, 1908. Q '9 SHEETS-SHEET 4.

- 0. N. MoFARLANDQ rown'n TRANSMITTING MECHANISM ron CALCULATINGMACHINES.

\ V :AIPLIIOAHON r'ngm SEPT.21, 1906.

902 103 Patented 0011.27, 1908.

9 SHEETS-SHEET a.

. c. N. McFARLAND. I POWER TRANSMITTING MECHANISM FOR CALCULATINGMACHINES.

. APPLICATION FILED SEPT. 21, 19067.1

- Patented 0ct.27,'1908@ v 9BHEETB-SHBET 6.

'ML- M 7 fiflaud, Inventor:

v 0; N. MoFARLAND. POWER TRANSMITTING MECHANISM FOR CALCULATINGMACHINES.

. APPLICATION FILED SEPT. 21, 1906.

a; N. MdFARLAND. POWER TRANSMITTING MECHANISM FOR CALCULATING MACHINES.I APPLICATION FILED SEPT. 21, 1906. I

902,103.. Patented Oct. 27, 1908. 1 I I 9 SHIIBIS SHEET 8.

Attest: In ventor:

w Attic G. N.. MQFARLAND. POWER TRANSMITTING MECHANISM FOR CALCULATINGMACHINES.

APPLIOATIQN TILED SEPT. 21, 1906. r 902, 103, Patented Oct. 27 1908. 9SHEETS-SHEET 9.

v 1 l A 1 I 0 A Agg 6M A rk' UNITED STATES PATENT OFFICE.

CHARLES N. MCFARLAND, OF KINGSTON, PENNSYLVANIA, ASSIGNOR TO THE ADDERMACHINE COMPANY, OF KINGSTON, PENNSYLVANIA, A CORPORATION OF PENN- themanual SYLVANIA.

POWER-TRANSMITTING MECHANISM FOR CALCULATING-MACHINES.

To all whom it may concern:

Be it known thatl, CHARLES N. MoFAR; LAND, a citizen of the UnitedStates, residing at Kingston, in-the county of Luzerne'and State ofPennsylvania, have invented certain new and useful Improvements inPower-Transmitting Mechanisms for Calculating-Machines, of which thefollowing is a specification. My invention relates to adding and print-111 machines and more particularly to means ac-apted-to connect theactuating mechanism of such riachines with a motor whereby box ofoperating the machine may be lessened; and its novelty consists in theconstruction and arrangement of the several parts, as Will be more fullyhereinafter pointed out.

Calculating machines have long been on the market and have generallybeen manually operated by a handle secured to a vibratory rock shaft,from which the parts have received their energy and motion. At-

tempts have been made to drive some of these machines by power and haveinvolved the use of eleot rlc' and other motors which have been thrownin and out of gear with the oscillating shaft by different devices. Allof these'devices known to me, however, had the disadvantage of positiveconnections to the calculating machine and faulty speed reducingmechanisms whereby only one actuation of the calculating machine couldbe obtained for each revolution of the driving shaft. They have also haddefective clutch mechanisms which were subject to wear soon bringing theparts of the same out of workin adjustment.

y means of my invention the subject of the present application,Igpiovidc a 1nechanism for transmitting the power of a motor to theactuating rock shaft of the calculating machine, brought into operationby the mere depression of a key by the operator and I alsoarran e theparts so that the actuation of the shal' t is entirelysimilar to thatwhich occurs when it is manually operated by a handle, although it maybe quicker. Moretimes for each rotation 'of the shaft ofthe motoremployed. I also provide an aut omatic clutchmechanism which maintainsits Specificatian of Letters Patent. Application filed September 21,1906. Serial No. 335,573;

Patented. Oct. 27, 1908.

adjustment against shock and wear for an indefinite period. These meansenable me toattach my power transmitting mechanism to any calculatingmachine having a vibratory rock shaft and to operate it at a great speedwithout injury to the parts. In this connection I do not deem itnecessary to the understanding of my invention that I should describe anadding machine and its mode'of o eration. A well known lorm is shown int epatents to Wales Nos. 794,205 and 797,032; or in the patent to,Rin'sche, No. 654,181. Each of these comprise a series of keys, meansfor setting up in their several mechanisms the'items indicated by thedepression. of the keys, means for accumulating such items and finallymeans for totalizing and registering or recording the totals. Each ofthese also has a vibratory shaft, the rocking of which actuatestl1e'.car rying, registering, recording and restoring mechanism when theproper keys have been depressed and which rock shaft is returned to itsoriginal position by independent means.

In the drawings, F i ure 1 is a side elevain Fig. 1 and'a partialfrontelevation. F ig..

3 is a vertical section on the plane of the line 3-3 in Fig. 2, and apartial elevation. Fig. 4 is a vertical section on the plane of the line44 in Fig. 2 omitting the adding machine parts. Fig. 5-is an enlargedview of the carrier and adjacent parts. Fig. 6 is a side elevation oftheparts shown in Fig. 5. Fig. 7 is a horizontal section of the carrier andadjacent parts on the plane of the line 7-7 in Fig. 8, and Fig. 8 is avertical section on the plane of the line 88 in Fig. 2 omitting some ofthe parts. Fig. 9' is an enlarged View of the clutch mechanism (shownalso in Fig.

2) and Fig. 10 is a side elevation of the power transmitting mechanism,a portion of its casing and some of the connected parts of the addingmachine including the resetting sprin Figs. 11, 12, 13 and 14 are sundrydetaiFviews of the carrier. Fig. 15 is a plan of the control ring. Fig.16 is a section of Fig. 2 is of its side frames, of which there are two,one on each side of the machine, and 3, ,3, are the keys actuating theaccumulating mechanism not shown). In the side frames are suitableapertures serving as bearings for'the vibrating rock jshaft 136 of theadding fm'achine moved in the'inanner hereinafter described. Twobrackets 4 (of which only one is shown) are mounted upon the base landso port a bar 5 transversely] alranged across the machine. To this baris secured-one end ,of a main spring 6 to the other end of which issecured a link 7 pivoted to a crank 8 connected to the shaft 136. Whenthe shaft 136' is rocked toward the operator, who stands in front of themachine, and the parts of the mechanism are moved, thereby, the mainspring 7 is stretched to an extent determined by the are through whichthe shaft has been oscillated. When the shaft is released the energystored in this spring is utilized to retract the parts to their initialpositions. A

brake member 9 secured to the shaft 136 serves to limit the reversemovement of the shaft, because such brake is brou ht into contact with aootiperating brake p ate 10suitably mounted upon the base of themachine. The parts just described are best shown in Fig. 10 and form nopart of my invention.

indicates a motor of any suitable size and construction deriving itspower from any suitable source and kind of energy and 101 is a shaftactuated therefrom and carrying a worm 102 which is in mesh with a wormgear 103 rigidly secured to a shell 104, so-that the gear and shellconstantly rotate on a counter shaft on which they are loosely mounted.The shell 104 is also provided with an inner peripheral friction ring106. Suitable means are provided for coupling the shell 104 to saidcounter shaft 105. The counter shaft 105 is provided with a carrier 107supporting a plate 108 having radial arms' 109 and 110 and which carrieris also provided with a hub 111 having a disk 112 provided at its edge'at three points along its edge (best seen in Fig. 3). Eccentricallymounted on the plate 108, on each arm 110, there is a clutch-- ing arm117 having a curved terminal surface 118 and provided with tensionsprings 1 19 sec ured to pins 19 on the arms 117 and the other ends ofwhich springs 119 are secured to the arms 109 by pins 120 (see Figs. 4and 8). The arms 117 are, he, rovided with pins 20 adapted to engagit aslot 121 in the control ring 113.

Pivotcd at any suitable g whit c' the casing as 125 is a pawl 126 ciao ga .'oller 127 iulapted. to engage the cam all: 115, fitting info thedepressions 116 at its edge and which pawl is held against the disk 115by a tension ment of the camdisk is a keyhaving a dependent stem 141suitably supported and guided by a protecting frame 142. (See Fig. 2.)It is notched at 143 to embrace a pin 144 secured to the frame of themachine and which limits the extent of its movement. It is recessed at145 for a urpose which will presently appear. At its ower extremit it ispivoted to an arm 146, theother en of which is secured to a rock shaftadapted to oscillate in suitable bearings in the frame of the machine.Mounted on this rock shaft 150 is an arm 151 having a holder roller 152adapted to engage with the toes 114, on the control ring 113 to hold therim against movement. Also mounted on t 's rock shaft 150 is an arm 153provided with a roller 154 adapted to engage the cam edges of the disk115. 1

A bell crank lever 155 is pivoted on the frame of the machine at 156,having outwardly projectin lips 157 and 158, and which lever is yiedingly held by the spring 159 toward the key stem 141. On the shaft 1136is a trip 160 adapted to engage with the i 157. The functions of theseveral parts are as follows :The motor shaft 101 andworm 102 with theshell 104 and its ring 106 con stantly rotate. The purpose sought to beaccomplished by the mechanism described is to transmit this rotarymotion'as may be reuired to. the plate 130 and roller 132 in ordeer thatthe roller shall engage with the arm 135 on the actuating shaft 136 soas to oscillate the latter and slmilate the motion of the same when theadding machine is manually operated.

The carrier 107 and its ,related parts.con'- stitute a clutch mechanismwhich is adapted to throw the constantly rotated worm gears 1:02 and 103into enga ement with the couritersha'ft 1.05 and whic clutch mechanismis actuated by the depression of the key 140 by the operator. Thecontacting surfaces 118 of the arms 118 are normally held out of contactwith the inner surface of the ring 106 through the action of the controlring 113 which is maintained in a stationary position b means of theholder 152. This is accomp 'shed through the pins 20 on the arms 117,the-sides ofthe slots 121 which ins engage forme in this control ring113.

The, holder 152 is automatically restored to its original positionbymeans of the moveagainst the roller 154 of the arm 153.

When the roller holder 152 is moved out of (See Figs. 1' and 2.)

the path of the toes 114, 114, ofthe ring 113, the arms 117 are at oncepulled against the inner surface of the ring 106by the tension of thespring 119 and contacting with such surface the rotary motion of thering 106 is communicated to the carrier 107 and through it to the shaft105, which, as it rotates, swings one of the rollers 132 against the arm135 and oscillates the shaft 136 and so actuates the mechanism of theadding machines It will be noted that so long as the holder 152 is incontact with one of the toes 1 14, the clutch mechanism connecting thecounter shaft 105 with the plate 130,.whereby the rock shaft 136 isvibrated, is idle. It is ob vious that as soon as the function of thisholder is interrupted, thev counter shaft 105 and the rock'shaft 136 arein effect coupled together through the clutch mechanism and remain socoupled until thecontinu'ed rotation of the cam late 115, (forming artof this clutch meclian ism) automatica 1y restores the holder to itsoriginal position and function. The interruption of the function of thisholder 152 is accomplished by the depression ofthe key stem 141, whichmoves the arm 146, rocks the shaft 150 and thereby moves the holder 152out of engagement with the particular toe 114 then in contact therewith.v

The method of operating the device is as follows:-.After -the requireditem has been set up on the adding machine by the depression of the keysin the usual manner, and it is desired to accumulate it in themachine,the

operatordepresses the key 140,..tThis moves downwardly the key stem 141until it'is -stopped..--Qn.-1the pin 144. This movement swings -the 'aim146 to oscillate the rock shaft- 150' and 'swings the holder arm 151 tomove the holder 152 out of engagement with the toe 114 of the controlring 113. This operation simultaneously swings the restoring arm 153 ina direction opposite to that of thearm 151 and moves the rollcr154 ofsuch restoring armintocontact with the edge of the cam disk'115. Themotor shaft 101 through the worm gear 102, 103, im arts a continuousrotary motion to the s ell 104 which is loosely'mounted on the shaft105, and the function of the clutch. mechanism is to communicate thismotion of the shell to the shaft 105.

Previous to the depression of the Ik-ey 140, mechanism are in the.

the parts of the ciutc positions shown in Fig. 8 in which the arm 1 1 7is shown held out of functional engagement with theinner surface of thering 106 by means of'its pin 20 which is pressed against the side ofthe'slot 121 in the control ring 1 13 by the tension of the s ring 119and the mo tion of which is limit'e by the position of the side of thisslot. The control ring held in itsposi'tion because one of its toes 1'14is in con-tact with the holder 152. The rollar 127.

on the pawl 126 is in engagement with the recess 116 of the cam dish115, and this engagement prevents the backward rotation of the cam disk115 and plate 108 under the pull of the spring 119. i

hen the kev- 140 is depressed and, as

stated, the holder152 is moved away from.

the-toe 114, several things *occur. .In the first place, the pin 20ofthe arm 117, being no longer prevented from moving (because thecontrol ring 113 and its slot-1.211 are now free to move) the tension ofthespring 119 upon the arm 117 becomes effective and moves the arm.117into frictional engagement with the inner ring 106. In the secoiidplace, such frictional en agement communicates the motion of the s iell104 to the arms 117, 117 and through them to the plate 108 and carrier107. In turn this carrier moves the counter shaft 105 and with itthe'plate 130 secured to it. This movement then brings one of therollers 132 in contact with the arm 135 and oscillates the shaft 136 toactuate the mechanism of the adding machine. In the meantime, themovement of the arm 135 has moved the arm 160 :away from its engaen'ie'nt with the lip 157 on the latch155, ancf the latter, under thetension of the spring 159, ishcld by its'lip 1 58 in con tact with theside of the key stem 141 ready to engage with the notch 145 as the keystem is lifted which occurs almost instantly. How

this occurs is as follows:As soon as the partscontinue to revolve one ofthe toes 114 of the ring 113 'abutsfagainst the l10ld61i152andis-stopped thereby. The arm 117, how

.ever continues to move a slight distance,

thisbeingpermitted by the clearance in the slot 121, and ,disengagesthe-surface'118 of such arm from the inner ring106 and inter} rupts thecommunication between the motor 100 and the counter shaft 105. Under the"influence of its momentumthe, late 108 con tinues to rotate andstretches t e spring'119 unitl such momentum is .over'come and theenergy of the spring causes it to begin to move in the o positedirection. In the meantime, the r0 ler 127 of the pawl 126 has continuedin contact with the edge of the cam disk under the influenceof thespring 128 and seated itself in the depression 116. When. the reversemovement of the plate 108 itisstopped' by the'roller 127 of thismanually operated hOillpOlltl'llY to interrupt the lunction oi saidholder and automatic means adapted to restore said lunctioncomprising acam actuated by the shaft which positively moves the holder to itsinitial position.

2. A continuously rotating member, a shaft mounted near the same andprovided with a clutch constantly pressed toward engagement with therotating member, a holder normally kecgiiugthc clutch out of suchongagement, manually operated means com prising a key having a dependentstem adapted temporarily to interrupt the function of said holder,automatic means adapted to restore said function in connection withmeans to supplement such restoration which means are actuated by a partof the 1nechanism moved from the rotating member.

3. An adding machine comprising a vibratory actuating shal' t, a primemotor, a con tinuously rotating member moved thereby, a shaft mountednear said member and pro vided with a clutch pressed toward engage--ment therewith, a holder normally keeping the clutch out of such.engagement, means comprising a u'ianually operated key adaptedtemporarily to interrupt the function of said holder, and means adaptedto restore said function autolnatically operated. from therotatingmember shalt.

4. An adding machine, comprising a vibratory actuating shaft, aprimemotor, a

continuously rotating member moved thereby, a shalt mounted near saidmember and provided with a clutch pressed toward engagemeni'. therewith,a holder normally keeping the clutch out'oii such engagement, meanscomprising amanually operated key adapted temporarily to interrupt thefunction of said holder, and means adapted to restore said functionautomatically operated from the rotatimi member shaft, and meansoperated lrom the actuating shalt of the machine to prevent thedepressimi of the key before the vibratory shaft resumes its normalposition.

5. A motor provided with a shalt carrying a worm, a continuouslyrotating worm wheel meshing therewith, a countershal't driven by saidwheel, an adding machine or similar 'meehanism comprising a vibratoryactuating shalt provided with an area and means for intermittentlycoirieoting the arm. with the countershaft comprising a plurality ofmem- I hers secured to the countershaft and each adapted to engage thearm of the vibratory required angle of oscillation to actuate themachine while the countershaftris making less than one revolution. p

.6. A, motor provided with a shaft carryin a Worm, a continuouslyrotating wornnwhee meshing therewith, a countershaft driven by saidwhecl,-an adding machine or similar mechanism comprising a vibratoryactuating shaft provided with an arm and means for intermittentlyconnecting the armwith the countershatt comprising three members socuredto the countershalt and each ada )ted to engage the arm of the vibratoryhaft whereby the arm is moved through the res iaft is making one-thirdof a revolution.

. 7. A motor, continuously revolving which said drum is loosely mounted,a car: rier rigidly mounted on said shaft, a control ring-mounted tooscillate on said carrier and provided with projecting toes, adrivingzu'm eccentricaliy mounted on the carrier, means for placing aconstant tension on the driving 'arm, a connection between the controlrin and the driving arm and a holder adapte normally to keep the drivingarm out of con-- tact with the revolvin drum inside of which the carrieris mountec 8. A motor, a continuously revolving drum actuated thereby, aermntershalt on which said drum is loosely mounted, a carrier rigidlymounted on said shalt, a control ring mounted to oscillate on said shaftand provided. with projecting toes, a driving arm eccentrically mountedon the carrier, means for placing a constant tension on the driving arm,a connection between the control ring and the drivinglarm, a holderadapted normally to keep the driving arm out of contact with therevolving drum inside o'lwhich the carrier is mounted and meanslorinterrupting the action 01' such. holder comprising a key stein, thetop of which is near the plane of the keys of the machine.

V J. A motor, a continuously revolving drum actuated thereby, acountcrsl'uift on which said drum is-loosely mounted, a carrier rigidlymounted on said shalt, a control ring mounted to oscillate on saidcarrier and provided with projecting toes, a driving arm cecmitricallymounted on the carrier, means arm, a connection betiveen the controlring and the driving arm, a holder adapted normally to keep the drivingarm out of contact with the revolving drum inside of which the carrieris lIlUL'hIl/(A'l and means ftp manually interrupting the action or"such holder and automatically restoring it.

10. A. motor, a continuously revolving l drum actuated thereby, acountershafton shaft whereby the arm is moved through the qluired angleof oscillation while the'{eountervdrum actuated thereby, a counter-shafton.

for placing a constant tension on the driving which said drum is looselymounted, a carrier rigidly mounted on said shaft, a control ring mountedto oscillate on said carrier and provided with projecting toes, adriving arm eccentrically mounted on the carrier, means means comprisinga cam disk mounted on the t carrier; or countershaft and an armconnected with said holder cooperating therewith to restore the latterto its initial position as the cam rotates.

11. A motor, a continuously revolving. druinactuated thereby, acountershaft on which said drum is loosely mounted, a carrier rigidlymounted on said shaft, a control ring mounted to oscillate on saidcarrier and provided with projecting toes, a driving arm eccentricallymounted on the carrier, means for placing a constant tension on thedriving arm, a connection between the control ring and the drivin arm, aholder adapted norhe driving arm out of contact with the revolving druminside of which the mally to keep t carrier is mounted and meansyformanually interruptin the action of such holder and automatica yrestoring it and which automatic means positively restores the key toits initial position.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES N. MGFARLAND.

Witnesses:

HUBBARD B PAYNE, WILLIAM RVBAIRD.

